Negril's - Climate Controller

The purpose and function of this controller is as follows. This controller will switch on your fans (outlet for 2) at a preset temprature using an external thermostat with a Hysterisis depending on the thermostat you use (the one I am using in this will give you about 7 degrees hysterisis. It will provide 120v outlet for your CO2 regulator switch to turn on/off your CO2. Your CO2 will not turn on when your fans come on, nor will the CO2 discharge when your lights turn off. NOTE: you will need a Telair 8001 CO2 sensor to trigger your CO2, no sensor, no CO2 control...

This is a full function controller with the exception of Humidity (which one day I will figure out a cheap way to control that too and add it to this thread,I do have schematics for that, but have not done anything with it yet...something to look forward too)

Disclaimer: The information here is not meant to be used for illegal activities including the growing of plants that the government has deemed 'have no medicinal value'. 'Bull Shit'. Anyways, what you do with this information is up to you, and you or anyone else may not claim that this information is for conspiracy to grow any illicit plants or breaking of any laws. This informaion is meant to grow TOMATOES only!!! If you decide to use this information for other purposes your on your own. If you burn down your house, get electricuted, or somehow hurt yourself using this controller... not my problem,not my fault.

:thumbsup: Please read all instructions first before doing anything :thumbsup:

Now on with the instructions. I will supply photos of step by step construction later, but wanted to get this out to everyone. If you can't solder, ask for help from someone you know, better yet learn (if you give a man a fish you feed him for a day, if you teach a man to fish you feed him for a life time!). You will need to solder.

Following can be purchased at Radio Shack, One stop shopping, except for the thermostat and light sensor switch, which I suggest going to Lowes to buy.

Radio Shack Purchases
QTY Price Description Catalog #
1 $ 6.99 Project Enclosure 8x6x3 270-1809
1 $ 1.99 Screw Cap Panel Mount Fuse Holder 270-364
1 $ 5.29 125VDC/5A DPDT Mini Relay 275-249
2 $ 4.49 12VDC/1A SPDT Micro Relay 275-241
2 $ 2.69 Toggle Switch with On/Off Label Plate 275-602
1 $ 1.79 Grid-Style PC Board with 356 Holes 276-149
1 $ 2.29 4-Position Dual-Row Barrier Strips 274-658
1 $ 5.99 30-Ft. 18-Gauge Clear 2-Conductor Speaker Wire 278-1602
1 $ 2.49 4.0A 250V 5x20mm Slow-Blow Glass Fuse (4-Pack) 270-1066

Lowes Purchases
QTY Price Description Item #
1 $15.77 Hunter Mechanical Heat & Cool Thermostat 155770
1 $ 9.98 Regent Lighting Button Type Light Sensor 10755 (I saw this for less)
2 $ 0.89 120v Standard Outlets

Total= $61.54

Misc Items (shit you can find around the house, or salvage, except for the last item)
- 12v wall wart transformer DC output, I will not put this in as a purchase, find one laying around the house from an old cordless phone or something (buying one is a last resort,same thing with the speaker wire, and thermostat... you can find these junked somewhere, as for the speaker wire, we only need about 10' max...so you can use that piece you have laying around the house if you want, you can use any 18 gauge wire but since we need to connect 2 wires to a thermostat and the CO2 sensor, it makes it neater to have speaker wire... but to save money... you can even use )
- 8 thin bolts w/ nuts 1" long small enough for the outlets holes and for the barrier strips
- Orange Extension Cord 10' max with the plug end (one that goes in the wall)
you can also use 4 of the above with 4 drywall screws for barrier strips.
- Dremel tool with tile cutter bit for cutting out outlet holes and other holes too (can substitute drill for dremel)
- Common Sense!!! This project is not for the beginner. You need to have some understanding of what you are doing not to kill yourself, or burn down your house.


Back tomorrow Night to start putting this thing together! and a schematic.
HydroDynamics Reviewed by HydroDynamics on . Negril's Climate Controller Negril's - Climate Controller The purpose and function of this controller is as follows. This controller will switch on your fans (outlet for 2) at a preset temprature using an external thermostat with a Hysterisis depending on the thermostat you use (the one I am using in this will give you about 7 degrees hysterisis. It will provide 120v outlet for your CO2 regulator switch to turn on/off your CO2. Your CO2 will not turn on when your fans come on, nor will the CO2 discharge when your Rating: 5